{% block header %}
<header>
    <div id="menu">
        <nav>
        {% for menuitem in config.extra.nav %}
          <a href="{% if menuitem == config.extra.index_page %}{{config.base_url | safe }}{% else %}{{config.base_url | safe }}{{ menuitem }}{% endif %}" class="{% if menuitem in current_url and menuitem != '/' %}{{menuitem}} active{% elif menuitem == config.extra.index_page and current_url == config.base_url %}{{menuitem}} active{% else %}{{menuitem}}{% endif %}">{{ menuitem }}</a>
        {% endfor %}
        </nav>
    </div>
</header>
{% endblock header %}